EP0010293B1 - Improvements to pipe jointing compounds - Google Patents
Improvements to pipe jointing compounds Download PDFInfo
- Publication number
- EP0010293B1 EP0010293B1 EP79103998A EP79103998A EP0010293B1 EP 0010293 B1 EP0010293 B1 EP 0010293B1 EP 79103998 A EP79103998 A EP 79103998A EP 79103998 A EP79103998 A EP 79103998A EP 0010293 B1 EP0010293 B1 EP 0010293B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fibres
- weight
- composition
- pipe jointing
- oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/34—Filling pastes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/10—Materials in mouldable or extrudable form for sealing or packing joints or covers
- C09K3/1025—Materials in mouldable or extrudable form for sealing or packing joints or covers characterised by non-chemical features of one or more of its constituents
- C09K3/1028—Fibres
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2200/00—Chemical nature of materials in mouldable or extrudable form for sealing or packing joints or covers
- C09K2200/02—Inorganic compounds
- C09K2200/0243—Silica-rich compounds, e.g. silicates, cement, glass
- C09K2200/0252—Clays
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2200/00—Chemical nature of materials in mouldable or extrudable form for sealing or packing joints or covers
- C09K2200/04—Non-macromolecular organic compounds
- C09K2200/0447—Fats, fatty oils, higher fatty acids or derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2200/00—Chemical nature of materials in mouldable or extrudable form for sealing or packing joints or covers
- C09K2200/06—Macromolecular organic compounds, e.g. prepolymers
- C09K2200/0615—Macromolecular organic compounds, e.g. prepolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C09K2200/0635—Halogen-containing polymers, e.g. PVC
- C09K2200/0637—Fluoro-containing polymers, e.g. PTFE
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2200/00—Chemical nature of materials in mouldable or extrudable form for sealing or packing joints or covers
- C09K2200/06—Macromolecular organic compounds, e.g. prepolymers
- C09K2200/068—Containing also other elements than carbon, oxygen or nitrogen in the polymer main chain
- C09K2200/0685—Containing silicon
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2200/00—Chemical nature of materials in mouldable or extrudable form for sealing or packing joints or covers
- C09K2200/06—Macromolecular organic compounds, e.g. prepolymers
- C09K2200/0692—Fibres
Definitions
- the present invention relates to compositions particularly useful as thread sealants or pipe jointing compounds.
- Teflon (registed trade mark) tape is applied to threaded connections to aid sealing.
- difficulties encountered with application of the tape, plugging lines and "balling up” of the tape are disadvantages which were sought to be overcome by the use of pipe jointing compounds containing powdered polytetrafluoroethylene (PTFE) resins or other such powders suitably dispersed in a liquid carrier.
- PTFE polytetrafluoroethylene
- US-A-4 028 324 discloses a sealing composition for use in fuel cells at elevated temperatures. It comprises fibrillating polytetrafluoroethylene powder, a halogenated oil and a filler such as non-fibrillating polytetrafluoroethylene, silicon carbide or graphite.
- DE-A-2 11 6 846 discloses a sealing composition
- a sealing composition comprising fibres of such materials as newspaper, wood fibres, carbonized rayon fibres, carbonized kraft paper, asbestos, glass wool or mineral wool.
- a filler such as calcium carbonate or talc, and an oily carrier, such as a mixture of alkyd resins and a non-drying oil.
- compositions suitable for use as pipe jointing compounds comprise Teflon, polypropylene or polyethylene fibres in admixture with a suitable carrier.
- compositions also contain PTFE powder.
- compositions comprise a filler, such as talc or clay, fibres selected from PTFE, FEP (fluorinated ethylene propylene resins) polyolefin or mixtures of one or more thereof in admixture with a liquid diluent, such as castor oil, blown castor oil, alkyd varnish, silicon oil, long oil, phenolics or other synthetic base oils.
- a liquid diluent such as castor oil, blown castor oil, alkyd varnish, silicon oil, long oil, phenolics or other synthetic base oils.
- Such compositions preferably also contain Teflon powder and a pigment such as titanium dioxide.
- compositions comprise:
- compositions may also contain pigment material such as titanium dioxide in an amount of 0% to 7%, preferably 2.5% by weight.
- compositions were found to exhibit similar properties. All percentages are expressed as % by weight.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Wood Science & Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sealing Material Composition (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Joints With Pressure Members (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Joints With Sleeves (AREA)
- Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
Abstract
Description
- The present invention relates to compositions particularly useful as thread sealants or pipe jointing compounds.
- Commonly, Teflon (registed trade mark) tape is applied to threaded connections to aid sealing. However, difficulties encountered with application of the tape, plugging lines and "balling up" of the tape are disadvantages which were sought to be overcome by the use of pipe jointing compounds containing powdered polytetrafluoroethylene (PTFE) resins or other such powders suitably dispersed in a liquid carrier. However, such compounds have been found to be unsuitable as sealants at fairly low pressure on water fittings.
- The following are representative of the prior art:
- US-A-4 028 324 discloses a sealing composition for use in fuel cells at elevated temperatures. It comprises fibrillating polytetrafluoroethylene powder, a halogenated oil and a filler such as non-fibrillating polytetrafluoroethylene, silicon carbide or graphite.
- DE-A-2 11 6 846 discloses a sealing composition comprising fibres of such materials as newspaper, wood fibres, carbonized rayon fibres, carbonized kraft paper, asbestos, glass wool or mineral wool. A filler such as calcium carbonate or talc, and an oily carrier, such as a mixture of alkyd resins and a non-drying oil.
- It is an object of the present invention to substantially ameliorate such problems by providing an improved composition, in paste form, suitable for use as a pipe joining compound which contains synthetic fibres in admixture with a suitable carrier.
- In a preferred embodiment of the invention the compositions suitable for use as pipe jointing compounds comprise Teflon, polypropylene or polyethylene fibres in admixture with a suitable carrier.
- In another preferred embodiment of the invention these compositions also contain PTFE powder.
- A particularly advantageous result has been achieved with the use of polyethylene fibres due to their tendency to expand, once in the joint, and further enhance the sealant properties of the composition.
- In a preferred form of the invention the compositions comprise a filler, such as talc or clay, fibres selected from PTFE, FEP (fluorinated ethylene propylene resins) polyolefin or mixtures of one or more thereof in admixture with a liquid diluent, such as castor oil, blown castor oil, alkyd varnish, silicon oil, long oil, phenolics or other synthetic base oils. Such compositions preferably also contain Teflon powder and a pigment such as titanium dioxide.
- In a more preferred form of the invention, the compositions comprise:
- from 20-50% by weight of a filler, such as talc or clay;
- from 5-15% by weight of the synthetic fibres, preferably Teflon, polyethylene or polypropylene fibres;
- from 20-45% by weight of a liquid diluent such as castor oil (blown castor oil, alkyd varnish) silicon oil, long oil, phenolics or other synthetic base oils;
- from 0-30% by weight of PTFE powder.
- If desired, these compositions may also contain pigment material such as titanium dioxide in an amount of 0% to 7%, preferably 2.5% by weight.
- The following examples serve to further illustrate but do not limit the present invention.
-
- The following compositions were found to exhibit similar properties. All percentages are expressed as % by weight.
-
-
-
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT79103998T ATE9487T1 (en) | 1978-10-17 | 1979-10-16 | IMPROVEMENTS TO THE SEALING CONNECTIONS FOR PIPES. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AUPD640578 | 1978-10-17 | ||
AU6405/78 | 1978-10-17 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0010293A1 EP0010293A1 (en) | 1980-04-30 |
EP0010293B1 true EP0010293B1 (en) | 1984-09-19 |
Family
ID=3767784
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP79103998A Expired EP0010293B1 (en) | 1978-10-17 | 1979-10-16 | Improvements to pipe jointing compounds |
Country Status (7)
Country | Link |
---|---|
US (1) | US4548960A (en) |
EP (1) | EP0010293B1 (en) |
JP (1) | JPS5565282A (en) |
AT (1) | ATE9487T1 (en) |
AU (1) | AU5179879A (en) |
CA (1) | CA1171991A (en) |
DE (1) | DE2967225D1 (en) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4330442A (en) * | 1980-05-07 | 1982-05-18 | Armstrong World Industries, Inc. | Asbestos free gasket forming compositions |
DE3446109A1 (en) * | 1984-12-18 | 1986-06-19 | Teroson Gmbh, 6900 Heidelberg | METHOD FOR INSULATING CONSTRUCTIONS AGAINST HUMIDITY, AND SEALANTS FOR CARRYING OUT THE METHOD |
JPH0547910Y2 (en) * | 1987-03-05 | 1993-12-17 | ||
DE3710146A1 (en) * | 1987-03-31 | 1988-10-13 | Basf Ag | METHOD FOR CLOSING AND / OR SEALING OPENINGS, CAVES OR SPACES IN PRINTING PLATES APPLIED ON FORM CYLINDERS |
US5444116A (en) * | 1993-07-14 | 1995-08-22 | Greene, Tweed & Co. | Perfluoroelastomeric compositions and seals having improved chemical resistance and methods of making the same |
CA2169549C (en) * | 1993-08-18 | 2000-07-11 | James D. Lewis | A tubular intraluminal graft |
US5735892A (en) * | 1993-08-18 | 1998-04-07 | W. L. Gore & Associates, Inc. | Intraluminal stent graft |
US6117556A (en) * | 1995-03-31 | 2000-09-12 | Daikin Industries Ltd. | Tape for sealing screw joints |
US6010985A (en) * | 1997-01-31 | 2000-01-04 | Elisha Technologies Co L.L.C. | Corrosion resistant lubricants greases and gels |
US6017857A (en) * | 1997-01-31 | 2000-01-25 | Elisha Technologies Co Llc | Corrosion resistant lubricants, greases, and gels |
US6011084A (en) * | 1998-06-26 | 2000-01-04 | Binney & Smith Inc. | Erasable colored pencil lead |
EP1093495B1 (en) | 1998-06-26 | 2004-03-17 | Binney & Smith Inc. | Erasable colored pencil lead |
DE10002236A1 (en) * | 2000-01-20 | 2001-07-26 | Frederik Piestert | Pipe thread sealant containing liquid to paste-like components and synthetic and-or natural fibres, formulated to be non-hardening, chemically partly hardening or chemically hardening |
EP1874961A4 (en) * | 2005-04-12 | 2012-09-12 | Hercules Chemical Company Inc | Thread sealants with engineered fibers |
ITVA20080009A1 (en) * | 2008-02-13 | 2009-08-14 | Lamberti Spa | TAIL FAT |
RU2537608C1 (en) * | 2013-05-29 | 2015-01-10 | Открытое акционерное общество "Татнефть" имени В.Д. Шашина | Heterogeneous sealant for threads |
GB2534199A (en) | 2015-01-16 | 2016-07-20 | Henkel IP & Holding GmbH | Sealant material |
GB2534198A (en) | 2015-01-16 | 2016-07-20 | Henkel IP & Holding GmbH | Sealant material |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1907231A (en) * | 1930-06-14 | 1933-05-02 | Angot Charles | Rubberized and fibrous plastic material unattackable by oil |
US2578523A (en) * | 1950-06-30 | 1951-12-11 | Du Pont | Polytetrafluoroethylene packing material and process for making same |
US2586357A (en) * | 1950-06-30 | 1952-02-19 | Du Pont | Tetrafluoroethylene polymer compositions |
US3037893A (en) * | 1956-05-09 | 1962-06-05 | Charles S White | Bearing element comprising fibrous fluorocarbon |
US3069387A (en) * | 1956-06-01 | 1962-12-18 | Kenmore Res Company | Thixotropic thread lubricant |
FR1237569A (en) * | 1958-10-14 | 1960-07-29 | Lubricating and sealing tape for threaded joints | |
GB891537A (en) * | 1959-01-30 | 1962-03-14 | Ici Ltd | Improved pelleting process |
US3287288A (en) * | 1964-09-21 | 1966-11-22 | Duriron Co | Low friction composition containing a resinous binder and degraded polytetrafluoroethylene particles |
FR1411410A (en) * | 1964-10-12 | 1965-09-17 | Process in particular for coating penetrating or joining elements as well as elements conforming to those obtained by the present process or similar process | |
US3437630A (en) * | 1965-12-20 | 1969-04-08 | Baker Oil Tools Inc | Thread sealing composition |
GB1356382A (en) * | 1970-04-06 | 1974-06-12 | Foseco Trading Ag | Sealant compositions in strip or ribbon form |
US3869393A (en) * | 1970-05-21 | 1975-03-04 | Everlube Corp Of America | Solid lubricant adhesive film |
JPS4830106A (en) * | 1971-08-19 | 1973-04-20 | ||
US3993584A (en) * | 1972-12-20 | 1976-11-23 | The Harshaw Chemical Company | Agglomerate containing fibrous polytetrafluoroethylene |
US4028324A (en) * | 1975-12-16 | 1977-06-07 | United Technologies Corporation | High temperature seal material and method for manufacturing the same |
ES462278A1 (en) * | 1976-09-18 | 1978-05-16 | Hoechst Ag | Sealing material on the basis of polytetrafluoroethylene fibers |
AT347003B (en) * | 1976-12-07 | 1978-12-11 | Chemiefaser Lenzing Ag | FIBERS OR FIBERS OF POLYTETRAFLUORAETHYLENE AND PROCESS FOR THEIR PRODUCTION |
US4163742A (en) * | 1978-02-09 | 1979-08-07 | E. I. Du Pont De Nemours And Company | Process and product prepared from tetrafluoroethylene resin and graphite fibers |
-
1978
- 1978-10-17 AU AU51798/79A patent/AU5179879A/en not_active Abandoned
-
1979
- 1979-10-16 AT AT79103998T patent/ATE9487T1/en active
- 1979-10-16 EP EP79103998A patent/EP0010293B1/en not_active Expired
- 1979-10-16 DE DE7979103998T patent/DE2967225D1/en not_active Expired
- 1979-10-17 JP JP13306479A patent/JPS5565282A/en active Pending
- 1979-10-17 CA CA000337799A patent/CA1171991A/en not_active Expired
-
1983
- 1983-11-23 US US06/554,778 patent/US4548960A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
ATE9487T1 (en) | 1984-10-15 |
DE2967225D1 (en) | 1984-10-25 |
CA1171991A (en) | 1984-07-31 |
AU5179879A (en) | 1980-04-24 |
JPS5565282A (en) | 1980-05-16 |
US4548960A (en) | 1985-10-22 |
EP0010293A1 (en) | 1980-04-30 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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